Metal sheet-piling.



T. c. JACKSON.

METAL SHEET PILING. APPLICATION FILED MAR.7,1908.

Patented May 25, 1909.

jivenlvr IEETAL SHEET-FILE? Application filed lrl-iarch 7, 1908.

To all whom it may concern:

Be it known that I, Trier-airs t3. Jamison, a citizen of the UnitedStates, and a resident of Chicago, in the county of (look and State ofIllinois, have invented certain new and useful Improvements in MetalSheet-Piling; and I do hereby declare that the following is a full,clear, and exact (ilesci-iption there-cf, reference being had to theaccompanying drawings, and to the numerals of reference marked thereon,which form a part of this specification.

This invention relates to improvements in metal sheet piling adapted forthe construction of the walls of cofi'er-dams and like uses Where it isdesired to arrange for a watertight oint between the units of the wall,and the invention refers more specifically to means for providing awater tight joint between the units of the piling wall.

My improvements are intended to PI'OVlClG a water tight joint betweenunits of a piling wall composed of a single row of such units, therebyavoiding the necessity of providing a double wall and filling the s acebetween the same.

A further object of the invention is to provide a water tight connectionbetween metal sheet piling units wherein said units and the parts whichform the water tight connections may be made of simple commercial rolledshapes.

The invention consists in the matters hereinafter set forth and moreparticularly pointed out in the appended claims.

As shown in the drawings :Figure 1 is a top plan view of a short sectionof wall made of metal sheet piling embodying my invention. Fig. 2 is aperspective view of the upper ends of a plurality of pile units. Fig. 3is a fragmentary perspective view of one of the units. Fig. 1 is a planview showing a modification of the joint between the units.

As shown in the drawings, 10, 10 designate the sections or units of thesheet piling, which comprise fiat web portions and marginal flanges,thelatter fitting in suitable interlocking relation to each other, wherebyeach unit, as driven, is guided into place from an already driven unit,and said units are held permanently in position one with respect to theother. The form of unit herein shown is that of an Lbeam and one of thefeatures of my invention is to employ a commercial rolled shape in theproduction of the piling.

iipeeification of Letters Patent.

Patented May 25, 1909.

Serial No. 419,622.

The flanges 11, 11 of said I-beani units are shown as arranged parallelwitn each other, but not in contact at their adjacent faces, and the dmices for producing water tight joints be en the units are located in thespaces v. ch separate the flat faces of said flanges. the said units areadapted for interlocking and sliding connection with each other bymcansproviding for the guiding of each unit being driven from a unit alreadydriven, and which will also hold the sections or units rigid togetherwhen driven. The de vices herein shown for locking the units to gethercomprise clips 12, 12 which are made k .neraliy like the locking c l sshown in the prior U. S. patent to Cluxton, No. 878,773, granted lebruary 11, 1908. Said ciips comprise shank portions I3, 13 which arebolted or otherwise fixed to the webs of the units, and hook portions 11, 1a which fit in contact with the flanges of the units to which theyare attached and extend beyond the same for interlocking engagement withthe flanges of adjacent units. The only modification of the clip hereinshown from that shown in said Clunton patent, lies in the fact that thehooked portions I l are made slightly longer to eX- tend across thespace which separates the flanges 11 of the units that are lockedtogether by said clips.

Referring now to the features of construction which constitute theprincipal part of my invention, the same are made as follows: 16, 17designate channel bars which are fixed to the flat outer faces of theflanges 11 of the I-beam units, said channel bars being arranged withtheir web portions 18 parallel with said flanges and with their flangesdi rected outwardly at right angles thereto. They are fixed to the unitsby rivets 20, or like fastening means. One of said channel bars, thechannel bar 16 as herein shown, is made wider than the other channel bar17 and is adapted to receive the latter in close fitting engagement, asclearly shown in Figs. 1 and 2, said flanges overlapping each otherthroughout the principal portions of their width. Said channel bars 16and 17 inclose, when fitted together between two driven sections, aspace which is adapted to be filled by any suitable packing material2]., preferably of a nature which may be placed in said space when in aplastic condition, and may be afterward tamped therein and allowed toharden. Concrete and like cementitious material or softened dirt may beemployed. Desirably the material is such as to expand or swell in thepresence of water, thus insuring a joint which shall be maintainedtight. A material which is poured into said packing spaces when in asoft or plastic form is preferable inasmuch as it entirely fllls saidspaces and tends to close the spaces between the overlapping flanges 19of the channel bars, if such flanges be separated. It will be observed,'by in spection of Figs. 1 and 2, that water, in order to find its wayfrom one side of the wall to the other, must pass between theoverlapping flanges 19 at one side of the piling wall, through the bodyof the packing material 21 and between the overlapping flanges 19 at theother side of the wall. It will be observed that the packing betweenadjacent units is formed by overlapping flanges extending at an angle tothe adjacent flat faces of the sections or units and fitting in contactwith each other and inclosing between the same spaces to receive packingmaterial. Thus, it will be obvious that, with said parts fitting closelytogether, and the spaces surrounded by said channel bars filled with apacking material which expands in the presence of water, an extremelyeffective joint will be provided to prevent the passage of water betweenthe units.

In Fig. 4 l have shown a n'iodification wherein a single channel bar 22is employed between the flanges of adjacent units, the said bar beingattached to the flat face of one of two adjacent flanges, and theflanges of said channel bars engaging at their free longitudinal marginsthe other or opposing flat face of the adjacent flange. in thisconstruction the units are fastened together by the clips 12 shown inthe previously described construction.

I claim as my invention 1. Metal sheet piling comprising interlockedunits formed with marginal flanges which are separated by a space andbars attached to said units having parts which extend across the spaceseparating the units, the said parts of the bars being arranged foroverlapping contact at their free margins and throughout substantialportions of their width whereby is formed elongated spaces inclosed bythe bars and units to receive and retain a packing material.

2. Metal sheet piling comprising interlocked units formed with marginalflanges which are separated a distance from each other, and flanged barsfitted to the flat faces of the unit flanges and overlapping each otherat their free margins and arranged to inclose spaces to receive apacking material.

3. Metal sheet piling comprising interlocked units formed with marginalflanges which are separated a distance from each other, and channel barsfixed to the opposing faces of said flanges and arranged with theirflanges in overlapping relation.

1. Metal sheet piling comprising interlocked sections embracing I-beams,the flanges of which are arranged parallel with and separated from eachother, and channel bars attached to the opposing faces of said flangesand arranged with their flanges in overlapping relation to form spacesto receive a packing material.

In testimony, that I claim the foregoing as my invention I aflix mysignature in the presence of two witnesses, this 29th day'of February A.D. 1908.

THOMAS C. JACKSON.

Witnesses F. F. CUTTING, H. W. VANscoIK.

